An old version has text like this:

  \raisebox{-4\baselineskip}{\begin{minipage}…\end{minipage}}

A new version has instead:

  \raisebox{-5\baselineskip}{\begin{minipage}…\end{minipage}}

This results in diff output that latexpdf chokes on. Sample input
files are attached.

I have checked this and can confirm the bug on latest version of latexdiff.
As a quick fix you can use option '--exclude-safecmd=raisebox'.

The example demonstrated some more fundamental problem for commands with
options which are safe and text commands at the same time.
I will look into this when I get some time.

In general it would be great if latexdiff issues are reported directly at

https://github.com/ftilmann/latexdiff

rather than on debian specific bug list.  (I have already transferred
this bug report to github - progress will be tracked there, but I will
try to remember to send an email to the deibain list when fixed.